var ddsmoothmenu = {

//Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
    arrowimages: {down:['downarrowclass', 'down.gif'], right:['rightarrowclass', 'right.gif']},
    transition: {overtime:300, outtime:300}, //duration of slide in/ out animation, in milliseconds
    shadow: {enable:false, offsetx:5, offsety:5}, //enable shadow?
    showhidedelay: {showdelay: 100, hidedelay: 200}, //set delay in milliseconds before sub menus appear and disappear, respectively

///////Stop configuring beyond here///////////////////////////

    detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)
    detectie6: document.all && !window.XMLHttpRequest,
    css3support: window.msPerformance || (!document.all && document.querySelector), //detect browsers that support CSS3 box shadows (ie9+ or FF3.5+, Safari3+, Chrome etc)

    getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
        var $menucontainer=$('#'+setting.contentsource[0]); //reference empty div on page that will hold menu
        $menucontainer.html("Loading Menu...");
        $.ajax({
            url: setting.contentsource[1], //path to external menu file
            async: true,
            error:function(ajaxrequest){
                $menucontainer.html('Error fetching content. Server Response: '+ajaxrequest.responseText)
            },
            success:function(content){
                $menucontainer.html(content);
                ddsmoothmenu.buildmenu($, setting);
            }
        })
    },


    buildmenu:function($, setting){
        var smoothmenu=ddsmoothmenu;
        var $mainmenu=$("#"+setting.mainmenuid+">ul"); //reference main menu UL
        $mainmenu.parent().get(0).className=setting.classname || "ddsmoothmenu";
        var $headers=$mainmenu.find("ul").parent();
        $headers.hover(
            function(e){
                $(this).children('a:eq(0)').addClass('selected')
            },
            function(e){
                $(this).children('a:eq(0)').removeClass('selected')
            }
        );
        $headers.each(function(i){ //loop through each LI header
            var $curobj=$(this).css({zIndex: 100-i}); //reference current LI header
            var $subul=$(this).find('ul:eq(0)').css({display:'block'});
            $subul.data('timers', {});
            this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()};
            this.istopheader=$curobj.parents("ul").length==1? true : false; //is top level header?
            $subul.css({top:this.istopheader && setting.orientation!='v'? this._dimensions.h+"px" : 0});
            /*
             $curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
             '<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
             +'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
             + '" style="border:0;" />'
             )
             */
            if (smoothmenu.shadow.enable && !smoothmenu.css3support){ //if shadows enabled and browser doesn't support CSS3 box shadows
                this._shadowoffset={x:(this.istopheader?$subul.offset().left+smoothmenu.shadow.offsetx : this._dimensions.w), y:(this.istopheader? $subul.offset().top+smoothmenu.shadow.offsety : $curobj.position().top)}; //store this shadow's offsets
                if (this.istopheader)
                    $parentshadow=$(document.body);
                else{
                    var $parentLi=$curobj.parents("li:eq(0)");
                    $parentshadow=$parentLi.get(0).$shadow
                }
                this.$shadow=$('<div class="ddshadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($parentshadow).css({left:this._shadowoffset.x+'px', top:this._shadowoffset.y+'px'});  //insert shadow DIV and set it to parent node for the next shadow div
            }
            $curobj.hover(
                function(e){
                    var $targetul=$subul; //reference UL to reveal
                    var header=$curobj.get(0); //reference header LI as DOM object
                    clearTimeout($targetul.data('timers').hidetimer);
                    $targetul.data('timers').showtimer=setTimeout(function(){
                        header._offsets={left:$curobj.offset().left, top:$curobj.offset().top};
                        var menuleft=header.istopheader && setting.orientation!='v'? 0 : header._dimensions.w;
                        menuleft=(header._offsets.left+menuleft+header._dimensions.subulw>$(window).width())? (header.istopheader && setting.orientation!='v'? -header._dimensions.subulw+header._dimensions.w : -header._dimensions.w) : menuleft; //calculate this sub menu's offsets from its parent
                        if ($targetul.queue().length<=1){ //if 1 or less queued animations
                            $targetul.css({left:menuleft+"px", width:header._dimensions.subulw+'px'}).animate({height:'show',opacity:'show'}, ddsmoothmenu.transition.overtime);
                            if (smoothmenu.shadow.enable && !smoothmenu.css3support){
                                var shadowleft=header.istopheader? $targetul.offset().left+ddsmoothmenu.shadow.offsetx : menuleft;
                                var shadowtop=header.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : header._shadowoffset.y;
                                if (!header.istopheader && ddsmoothmenu.detectwebkit){ //in WebKit browsers, restore shadow's opacity to full
                                    header.$shadow.css({opacity:1})
                                }
                                header.$shadow.css({overflow:'', width:header._dimensions.subulw+'px', left:shadowleft+'px', top:shadowtop+'px'}).animate({height:header._dimensions.subulh+'px'}, ddsmoothmenu.transition.overtime)
                            }
                        }
                    }, ddsmoothmenu.showhidedelay.showdelay)
                },
                function(e){
                    var $targetul=$subul;
                    var header=$curobj.get(0);
                    clearTimeout($targetul.data('timers').showtimer);
                    $targetul.data('timers').hidetimer=setTimeout(function(){
                        $targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime);
                        if (smoothmenu.shadow.enable && !smoothmenu.css3support){
                            if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
                                header.$shadow.children('div:eq(0)').css({opacity:0})
                            }
                            header.$shadow.css({overflow:'hidden'}).animate({height:0}, ddsmoothmenu.transition.outtime)
                        }
                    }, ddsmoothmenu.showhidedelay.hidedelay)
                }
            ); //end hover
        }); //end $headers.each()
        if (smoothmenu.shadow.enable && smoothmenu.css3support){ //if shadows enabled and browser supports CSS3 shadows
            var $toplevelul=$('#'+setting.mainmenuid+' ul li ul');
            var css3shadow=parseInt(smoothmenu.shadow.offsetx)+"px "+parseInt(smoothmenu.shadow.offsety)+"px 5px #aaa"; //construct CSS3 box-shadow value
            var shadowprop=["boxShadow", "MozBoxShadow", "WebkitBoxShadow", "MsBoxShadow"]; //possible vendor specific CSS3 shadow properties
            for (var i=0; i<shadowprop.length; i++){
                $toplevelul.css(shadowprop[i], css3shadow)
            }
        }
        $mainmenu.find("ul").css({display:'none', visibility:'visible'})
    },

    init:function(setting){
        if (typeof setting.customtheme=="object" && setting.customtheme.length==2){ //override default menu colors (default/hover) with custom set?
            var mainmenuid='#'+setting.mainmenuid;
            var mainselector=(setting.orientation=="v")? mainmenuid : mainmenuid+', '+mainmenuid;
            document.write('<style type="text/css">\n'
            +mainselector+' ul li a {background:'+setting.customtheme[0]+';}\n'
            +mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
            +'</style>')
        }
        this.shadow.enable=(document.all && !window.XMLHttpRequest)? false : this.shadow.enable; //in IE6, always disable shadow
        jQuery(document).ready(function($){ //ajax menu?
            if (typeof setting.contentsource=="object"){ //if external ajax menu
                ddsmoothmenu.getajaxmenu($, setting)
            }
            else{ //else if markup menu
                ddsmoothmenu.buildmenu($, setting)
            }
        })
    }

}; //end ddsmoothmenu variable